diff --git a/requirements.txt b/requirements.txt
index 4bcc973..4a8343c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Flask>=3.0.0
 Flask-SQLAlchemy>=3.1.0
 pandas>=2.0.0
-openpyxl>=3.1.0
+openpyxl>=3.1.5
 gunicorn>=21.2.0
 reportlab==5.0.1